Baby-chair.



v v PATBNIED JAN. 31, 1905.' P. PERKINS;

BABY CHAIR. APPLICATION FILEDMAY 2, 1904.

, 5 3 z E r W a INVENTOR mam; P.-a3M

Br ATTORNEY WITNESSES:

' bar or head-piece thereof.

ITO/781,090.

UNITED STATES Patented January 31, 1905.

PAT NT OFFIc BABY-CHAIR.

SPECIFICATION forming part of Letters Patent No. 781,090, dated January31, 1905.

' Application filed May 2, 1904. Serial No. 205.861.

To all whom it may concern:

Be it known that L'ALFRED P. PERKINS, a,

citizen of the United States, residing at New York city, Manhattanborough, county and State of New York, have invented certain new anduseful Improvements in Baby-Chairs, of which the following is aspecification.

My invention relates to baby-chairs, more particularly to thatclassthereof adapted to be attached to or used in conjunction with anordinary chair; and the invention has for its object to prbvidea simple'and inexpensive baby-chair of the character-described which will permitof ready and easy vertical adjustment thereof upon an ordinary chair.

To these and other ends, which will hereinafter appear, my inventionconsists of the novel features of improvement and combination andarrangement of parts hereinafter described and summarized in theappended Similar numerals of reference indicate corresponding parts inthe several views.

Referring to the accompanying drawings, 1 1 indicate the rear standardsor posts of an ordinary chair, and 1 the usual upper cross- 2 2 indicatea pair of vertical side rods or bars, connected at the top and'bottom bycross rods or bars 2 2", respectively, these side and top and bottomcross-rods constituting a rigid rectangular frame adapted to be raisedand lowered, as will be presently described. Be-' tween the verticalside rods22 is a horizontally-disposed cross-bar '3, the ends whereofare kerfed or depressed, so as to fit into and partly embrace the rods 22, as shown in Fig. 1, whereby the rectangular frame may move verticallyalong and between the said ends.

4 indicates a screw-spindle, worm-screw, or

the like, which is loosely journaled in the top cross-bar 2 and engagesan internally-threaded aperture in the bar 8, the lower end of thescrew-spindle resting in a seat or bearing 4". in the lower cross-bar2,\and the upper end of the screw-spindle is provided with ahead or thelike 4 for conveniently rotating the said spindle.

5 5-indicate hooks or the like secured to the bar3, whereby the same andconnected parts may be attached to the head or back of an ordinarychair, 'as shown in Fig. 1; but other means of attachment to the chairmay be employed, if desired.

6 6 indicate the vertical side bars of the knockdown or collapsiblebaby-chair, which bars are connected by upper and lower crossbarssecured to the movable frame above described, preferably to the upperand lower cross-bars 2 2 thereof by screws or the like, and to the lowerend of said side bars is pivoted the seat 8 of the baby-chair, as at 6,the arms 9 9 being pivoted to the vertical side bars 6 6, as at 9 andheld in proper relation by uprights 1O 10, pivotally connected to theseat and arms, as at 1O 10' respectively. At the outer extremities ofthe arms 9 9 is a tray or the likell, pivotally connected at its ends toandbetween the said arms, as at 11, whereby it may be raised andlowered.

12 12 indicate cords or the like for raising and lowering the arms 9 9and connected seat to different inclinations, the said arms beingprovided with apertures 12 12 for angular insertion of the cords forbinding the same in the desired positions.

To vertically adjust the baby-chair upon the chair proper, it is simplynecessary to turn the screw-spindle until the movable frame andconnected baby-chair will be raised or lowered to the desired position.

In Fig. 3 I have shown a' modified arrangement of the means for verticaladjustment of the baby-chair upon the chair proper, wherein a bevel-gearconnection is .providedfor imparting a rotary movement to' the screwspindle or shaft 4:, the latter in this instance being journaled betweenthe upper and lower rods of the movable frame or between similar rods onthe baby-chair back and being provided with a bevel-gear 4 at the upperend, meshing with a bevel-gear 13 upon a shaft 14, loosely supported inthe said bar 2 and in a stem or bracket 15, the shaft 14 being providedat its outer end with a knob or grip 14 for operatin the same. Theoperation of this modified f i m of adjusting mechanism will be obvious.Turning the shaft 14 will, through the bevelgear connection, raise orlower the movable frame and connected baby-chair to the desiredposition, according to the direction of rotation of the screw-shaft inone direction or the other.

It will be understood that instead of securing the baby-chair to aseparate frame provided with my adjusting means, as above described,such means may be applied directly to the baby-chair back. When not inuse, the baby-chair may be readily detached from the back of the chairproper and collapsed, so as to occupy a comparatively small space.

Having described my invention, what I claim, and desire to secure byLetters Patent,

1. A chair, having a back, combined with means for vertical adjustmentthereof upon a,

support, said means comprising a screw-spindle mounted upon said back, ahorizontallydisposed member in screw connection therewith, and meansupon the said member for detachably securing the same to said support.

2. A baby-chair of the character described, combined with means forvertical adjustment thereof upon the back of a chair, said meanscomprising a screw-shaft in screw connection with a member detachablysecured to the said chair-back, and a frame vertically adjustable withrelation to said member.

3. A baby-chair, combined with means for vertical adjustment thereofupon a support, said means comprising a vertically-mo "able frame, ascrew-shaft loosely journaled therein, a member in screw connection withsaid shaft, and means for attachment of the same to a support.

4:. A chair of the character described, comprisinga seat and back, avertical screw-shaft journaled in the back, a member provided with athreaded aperture meshing with said shaft and means thereon fordetachably securing the same to a support, and a horizontally-disposedshaft journaled in the-said back and meshing with the first-named shaft,all arranged so that rotation of the horizontal shaft will rotate thevertical screw-shaft and vertically adjust the chair.

5. The combination with a chair seat and back, of a frame to which theback is secured, a horizontal bar or member in said frame, means thereonfordetachably securing the same to a chair-back, a vertically-disposedscrew-shaft journaled in said frame and meal ing with a threadedaperture in said member, a horizontally-disposed shaft or spindlesupported loosely in said frame, the said shafts being provided withbevel-gearsfor transmission of motion of the one to the other,substantially as and for the purpose herein shown and described.

ALFRED 1. PERKINS.

Vitnesses:

MAURIoE BLOCK, DAVID EILAIL

